Horseshoe.



w. T. WILLIAMS (11. HICKEY.

HORSESHOE.

APPLICATION FILED MAY 27. 1912.

Patented July 25. 1916.

MHIHHIIIHIIH avwwnto'za Yl zlliam T. Williams ill snares AT HORSESHOE.

Application filed May 27, 1912.

To all whom it may concern:

Be it known that We, WILLIAM T. TVVIL- LIAMS and Josnrir Hickey, citizens of the United States of America, residing at Detroit, in the county of lVayne and State of Michigan, have invented certain new and useful Improvements in Horseshoes, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to improvements in horse shoes and more particularly to a horse shoe having detachable calks.

The object of the invention is to provide an improved toe calk and means for detachably attaching the same to a horse shoe, all arranged and constructed 1n such a manner that the toe calk will be firmly held in place against accidental detachment and cannot be turned or twisted out of position and at the same time is so held that it may be quickly and easily detached for replacement or repair.

To this end the invention consists in the matters hereinafter set forth and more particularly pointed out in the claims, reference being had to the accompanying drawing, in which Figure 1 is a plan view of a horse shoe embodying the invention with two of the calks therefor shown detached; Fig. 2 1s a longitudinal section through the horse shoe with the toe calk in place; and 3 is a perspective view of the toe calk in an 1nverted position.

In the drawings, 1 represents a horse shoe of any desired shape and construction which is provided on its lower face near the heel thereof with bosses 2 and openings 8 in the bosses and shoe, which openings are rectan: gular in cross section. At the toe portion oi the shoe the same is formed with an elongated boss l on its lower face and an opening 5 is provided in this boss extending through the shoe which opening is elongated in the direction of the length of the boss and preferably formed oval in cross section.

Heel calks 6 are provided having shanks 7 which are rectangular in cross section to fit the openings 8, said openings and shanks being tapered slightly so that the shanks Wlll have a firm frictional engagement in the openings to hold the calks against displacement. The heads of the calks 6 are preferably elongated slightly and their bases 8 which engage the face of the bosses 2 are preferably formed rectangular in plan view Specification of Letters Patent.

Patented July 25, 1916.

Serial Ho. 699,850.

so that the corners of each base will project slightly over the edges of the round bosses The head of each heel calk is preferably formed of triangular shape in vertical cross section with the apex or sharp cutting edge 9 of the calk extending in a center line longitudinally of the base 8. The heel calks are thus given a firm hold upon the surface of the pavement or road-bed when in use by placing one of the calks with its point or edge 9 extending transversely of the shoe and the other calk with its holding edge extending longitudinally of the shoe. The corners of the rectangular base 8 which pro ject beyond the circular boss 2 provide shoulders for the engagement of a suitable tool therewith by means of which the calk may be lifted from its socket 3 in the shoe and quickly and easily detached for the purpose of replacement or repair.

A toe calk 10 which is of substantially rectangular form in plan View and is of triangular shape in cross section, is provided for the toe portion of the shoe and has a shank 13 which is oval in cross section to fit the opening 5 in the shoe, said opening and shank being tapered to give a strong frictional contact of the shank with the opening and firmly hold the calk in place. The apex or cutting edge 11 of the triangular shaped head of the calk eXends longitudinally of the head and the angles 12 at the base of the head project slightly beyond the edges of the boss 4 on the shoe so that a suitable tool may be engaged beneath these angles or shoulders and the calk readily disengaged from the shoe.

By providing a single toe calk which is several times longer than its width, the shoe is given a very firm hold on the rod-bed at its toe portion where a greater part of the strain comes upon the shoe when in use, and by forming this calk with an oblong shank to engage an oblong opening in the shoe, the calk is prevented from turning and thus working loose in its socket in the shoe. The boss 4 forms an extended base or seat for the elongated toe calk which is adapted to rest thereon throughout its length so that when pressure is put upon the calk in use it cannot tilt and thus work loose in its socket. The tapering shanks of the calks fitting within the tapering openings in the shoe give a very firm frictional engagement which will hold the calks against pulling out when in use as the weight of the animal drives the calks firmly into place and firmly seats them upon the bosses on the shoe.

Obviously changes may be made in the form and construction of the parts without departing from the spirit of our invention and we do not with to limit ourselves to the particular shape, arrangement or construction shown.

Having thus fully described our invention what we claim is A horse shoe having a depending boss at the toe portion thereof extending transversely of the shoe and having side walls extending inwardly from the walls of the shoe and the forward wall of the boss curved to conform to the curvature of the forward wall of the shoe, said boss having an opening formed therein extending through said shoe, said opening being oval in plan and having walls converging to the top of the shoe, and a toe calk having a shank to snugly engage the walls of the opening of said boss with the end thereof removed from the top of the shoe, said call: corresponding in length to said boss and having beveled end walls and shoulders bearing against said boss and over-hanging the walls thereof, said calk having walls thereof beveled to provide a sharp edge throughout the length of said calk with the front wall at a greater inclination than the rear wall whereby the greater part of the body of said call; will be forward of a line at right angles to the plane of the shoe and intersecting the sharp edge of the calk to resist a clawing blow by said calk.

In testimony whereof we aflix our signatures in presence of two witnesses.

lVitnesses ANNA M. SHAN ON, ANNA M. Donn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of (Patents, Washington, D. G. 

